The Tribeca Film Festival has announced the lineup of features and shorts to be screened as part of the 2011 fest’s online arm, laying out a model where films will screen free over the Internet to a limited number of viewers who reserve “seats.”

This year is the second for the fest’s Web-based programming. The 2011 edition, Tribeca (Online), gets rid of the fee the fest charged to those who wanted access to online screenings last year.

Each film will be made available for three to five windows of 24 hours each, with each window accorded a set number of “seats,” or viewers who may access a screening. Viewers will be asked to reserve their spots in advance.

This year’s lineup of films includes six fest features: narrative offerings “Neon Flesh,” “Flowers of Evil,” “My Last Round” and “Rabies,” and docus “New York Says Thank You” and “Donor Unknown.” Eighteen shorts also are on tap, as well as a selection of offerings from prior festival years.

Online component will include fest-related content similar to what was offered last year, such as streaming coverage of fest events, Q&A sessions with filmmakers and a blog.

Virtual attendees are given the opportunity to vote for the fest’s online kudos, including online feature and online short.